A144917 a(n) is the maximal odd value attained by A144916(n).

1, 3, 7, 13, 19, 25, 31, 37, 43, 49, 55, 61, 67, 73, 79, 85, 91, 97, 103, 109, 115, 121, 127, 133, 139, 145, 151, 157, 163, 169, 175, 181, 187, 193, 199, 205, 211, 217, 223, 229, 235, 241, 247, 253, 259, 265, 271, 277, 283, 289, 295, 301, 307, 313, 319, 325, 331

Offset: 1

Author

Reikku Kulon, Sep 25 2008

Keywords

• easy
• nonn

Comments

Most of these are primes or semiprimes.

Is a(n) = A271114(n-2) for n>=3 ? - R. J. Mathar, Jun 21 2025

Crossrefs

Cf. A016921, A144912, A144916